Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 124, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jul 31, 2000, 2:58 PM CDT for Colorado County, Texas. It was in force for 62 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Jul 31, 2000, 2:58 PM CDT (19:58 UTC)
- Expired
- Jul 31, 2000, 4:00 PM CDT
- In force
- 62 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Colorado County, TX
The radar
The Houston radar (KHGX), 143 km from the middle of the area, began a volume at 19:58 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 31, 3:15 PM CDT | Thunderstorm Wind | Weimar, TX | Rain gutter blown down and struck power lines. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 8.0 hours before the alert went out and 226 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 3412 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 639 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- -11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KHGX 312000 SVRHOU TXC089-312100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 258 PM CDT MON JUL 31 2000 THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON TX HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... COLORADO COUNTY IN SOUTHEAST TEXAS * UNTIL 400 PM CDT * AT 255 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM WEIMER TO JUST SOUTH OF COLUMBUS...MOVING SOUTH AT 10 MPH. * LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE... WEIMAR ROCK ISLAND SHERIDAN EXPECT LARGE HAIL AND DAMAGING WIND WITH THIS LINE. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. STAY AWAY FROM WINDOWS! PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE... OR DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. LAT...LON 2965 9629 2982 9669 2965 9686 2941 9660
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 31, 9:30 AM CDT, 5 hours 28 minutes earlier.
Area forecast discussion, Jul 31, 9:30 AM CDT, 5 hours 28 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 930 AM CDT MON JUL 31 2000 KHGX AND IR/VIS IMAGERY SHOW CONVECTION ALONG THE COAST AT MID-MORNING. THE MAIN UPDATE ISSUE IS WHERE/WHEN/HOW CONVECTION WILL CYCLE ACROSS THE CWA. SFC ANALYSIS SHOWS THE THE WEAKENING FRONT ROUGHLY ALONG A JCT/CLL/POE LINE...BUT CONVECTIVE OUTFLOWS WILL PROVIDE ADDITIONAL FOCI FOR CONTINUING CONVECTION. PRECIP WATER VALUES REMAIN MODERATE TO HIGH...ESPECIALLY ALONG THE SOUTH COAST. IN ADDITION...WINDS ARE WEAK AT ALL LEVELS...INDICATING THE POTENTIAL FOR SLOW MOVING STORMS ECHO TRAINING ALONG BOUNDARIES... AND THUS HEAVY RAIN. OVERALL THE FORECAST IS IN EXCELLENT SHAPE. THE CENTRAL POPS MAY BE SLIGHTLY HIGH...BUT THE CURRENT FORECAST CERTAINLY COULD VERIFY -- SO NO CHANGES. .HGX...NONE. 31/33/35 PREVIOUS PRELIMS... CLL BB 095/072 095/073 096 322 IAH EE 093/074 093/074 095 533 GLS TT 089/078 089/079 089 633
Nearby
Severe Thunderstorm Warnings in Texas, 2000Every severe thunderstorm warning in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.